Interior window frame



FIG. 1 is a top, front and left side perspective view of an interior window frame;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right-side elevational view thereof and a mirror image of a left-side elevational view thereof;

FIG. 4 is a rear plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top elevational view thereof. 

The ornamental design for an interior window frame, as shown and described. 